An L-band coaxial relativistic backward wave oscillator with mechanical frequency tunability
An L-band coaxial relativistic backward wave oscillator with mechanical frequency tunability
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DOI：
10.1063/1.3488353
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发表时间：
2010-09
影响因子：
4
通讯作者：
X. Ge;H. Zhong;B. Qian;Jun Zhang;Liang Gao;Zhenxing Jin;Yu-Wei Fan;Jianhua Yang
中科院分区：
文献类型：
--
作者：
X. Ge;H. Zhong;B. Qian;Jun Zhang;Liang Gao;Zhenxing Jin;Yu-Wei Fan;Jianhua Yang
本文介绍了L波段机械频率调谐同轴相对论返波管的初步实验结果。从理论和实验上研究了内导体对机械频率可调谐性的关键作用。实验中，当内导体半径为1.5cm时，辐射出频率为1.58GHz的L波段微波。同时，去除内导体后，产生了频率为2.31GHz的S波段微波。此外，通过机械地改变内导体的半径以半功率水平实现了4%以内的频率调谐。
The initial experimental results of an L-band coaxial relativistic backward wave oscillator with mechanical frequency tunability are presented. The key effects of the inner-conductor contributing to the mechanical frequency tunability are investigated theoretically and experimentally. In the experiments, the L-band microwave with frequency of 1.58 GHz is radiated when the inner-conductor radius is 1.5 cm. Meanwhile, the S-band microwave with frequency of 2.31 GHz is generated after removing the inner-conductor. In addition, the frequency tuning within 4% is realized by mechanically altering the radius of the inner-conductor at a half power level.